Factory and industrial management . Ptiforated pipes, supply and lateralThese may be in any convenient form lattdsupply pipeand laterals. whether of tools heated inthe barium-chloride bathor otherwise, be done inan oil bath. An excellentform for this purpose wasillustrated at page 249 ofThe Engineering Mag-A z I N E for November,1905. A still better formfor all-round use is illus-trated herewith. At the bottom of acylindrical g a 1 v a n -ized iron tank is laid aseries of pipes branchingfrom a central supplypipe, all perforated in theupper side. Air from theblower, or from the com-pressor if t


Factory and industrial management . Ptiforated pipes, supply and lateralThese may be in any convenient form lattdsupply pipeand laterals. whether of tools heated inthe barium-chloride bathor otherwise, be done inan oil bath. An excellentform for this purpose wasillustrated at page 249 ofThe Engineering Mag-A z I N E for November,1905. A still better formfor all-round use is illus-trated herewith. At the bottom of acylindrical g a 1 v a n -ized iron tank is laid aseries of pipes branchingfrom a central supplypipe, all perforated in theupper side. Air from theblower, or from the com-pressor if the pressurehas been sufficiently re-duced, bubbles up fromthe bottom, keeping theoil in the tank in circula-tion. It is therefore keptwell mixed and of uni-form temperature, and thetemperature is kept suffi-ciently low by the loss ofheat to the air bubblesconstantly escaping. About half-way to the bottom, or elsewhere as required, a re-movable wire netting is placed, properly supported, to catch any largetools that might accidentally be permitted to slip from the tongs. Ifthe netting be near enough to the top the tools can be dropp


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Keywords: ., bookcentury1800, bookdecade1890, booksubj, booksubjectengineering